May weather in Fostoria, IA
The average temperature in Fostoria in May is 58.6°F (47.4°F–69.9°F). Average precipitation: 4.19 inches.
May is a spring month in Fostoria, and is warmer than the annual average of 46.1°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 29m. For travel, May is a comfortable month to visit.
Avg High
69.9°F
Avg Low
47.4°F
Precipitation
4.19 in
Snow
0.1 in
May records in Fostoria
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 93.0°F (1987) | 24.1°F (1966) | 1.52 in (1942) |
| May 2 | 89.1°F (1965) | 23.0°F (1967) | 1.41 in (2024) |
| May 3 | 91.9°F (1949) | 19.9°F (1967) | 2.00 in (1928) |
| May 4 | 91.9°F (1952) | 24.1°F (2005) | 1.32 in (2003) |
| May 5 | 93.9°F (1924) | 25.0°F (1944) | 1.56 in (1959) |
| May 6 | 99.0°F (1934) | 21.9°F (1925) | 2.42 in (2007) |
| May 7 | 91.9°F (1934) | 24.1°F (1954) | 1.37 in (1899) |
| May 8 | 98.1°F (1934) | 25.0°F (1980) | 1.17 in (1979) |
| May 9 | 93.0°F (1934) | 24.1°F (1923) | 1.69 in (1990) |
| May 10 | 95.0°F (2011) | 27.0°F (1945) | 2.48 in (1967) |
| May 11 | 91.0°F (2022) | 23.0°F (1946) | 1.56 in (1975) |
| May 12 | 96.1°F (2022) | 26.1°F (1895) | 1.39 in (1986) |
| May 13 | 91.0°F (1987) | 27.0°F (1899) | 2.66 in (2023) |
| May 14 | 100.9°F (2013) | 27.0°F (1937) | 1.09 in (1985) |
| May 15 | 91.9°F (2001) | 28.0°F (1921) | 1.10 in (1943) |
| May 16 | 93.0°F (1936) | 27.0°F (1929) | 2.05 in (1969) |
| May 17 | 98.1°F (1934) | 21.9°F (1925) | 1.86 in (1961) |
| May 18 | 102.0°F (1934) | 30.9°F (1915) | 1.80 in (1944) |
| May 19 | 100.0°F (1934) | 30.0°F (1895) | 1.60 in (2025) |
| May 20 | 99.0°F (1934) | 30.0°F (1895) | 3.76 in (1959) |
| May 21 | 91.9°F (1934) | 26.1°F (1895) | 2.98 in (2004) |
| May 22 | 98.1°F (1925) | 25.0°F (1963) | 1.07 in (1981) |
| May 23 | 93.0°F (1964) | 27.0°F (1963) | 2.54 in (1998) |
| May 24 | 100.0°F (1939) | 28.9°F (1924) | 1.78 in (1914) |
| May 25 | 100.9°F (1967) | 26.1°F (1925) | 2.00 in (1937) |
| May 26 | 95.0°F (2018) | 32.0°F (1895) | 3.26 in (2013) |
| May 27 | 100.9°F (2018) | 34.0°F (1971) | 2.06 in (2019) |
| May 28 | 98.1°F (1934) | 28.9°F (1947) | 1.31 in (2016) |
| May 29 | 105.1°F (1934) | 25.0°F (1947) | 1.54 in (1980) |
| May 30 | 109.0°F (1934) | 30.9°F (1897) | 2.27 in (2022) |
| May 31 | 106.0°F (1934) | 28.0°F (1897) | 1.84 in (1951) |